One thing to keep in mind.

Just because that is where she's always been, doesn't make it the best for her. A move is very stressful, add that factor to a less than ideal enclosure, and you get a stressed out, unhappy ball who won't eat.

My advise to you, since it is that time of year for starters, she is undoubtedly still stressed from the move, and she's already not eating is to go ahead and make the switch to a different enclosure if you plan to.

If that isn't really what you want to do, or space constraints won't allow it, consider purchasing plexiglas panels to fit over the hardware cloth to help with humidity issues. For security, you can even purchase "smoked" plexiglas that is translucent black for the back and sides, and leave the front clear for visibility.

I will say, about 90% of the time, an "exploring" ball is an unhappy ball. Unless it's at night and the surroundings are dark, that's a sign of stress. She's trying to escape and find a place to feel safer. Does she have hides? If she doesn't, or they are substandard, that is only adding to the problem.

If you want to change enclosures, go with a 30 gallon aquarium or even better a good sized plastic storage tub. Get that all set up for heat and with good hides. move her in and give her a week to settle in. Start with a large mouse, while not an ideal food for a large ball, it's better than nothing.

By the way, there is nothing wrong with feeding the rats she refused at a later date. I buy enough for two or three weeks at a time. If you aren't careful, you'll soon have so many rats there isn't room for the snake!

Gale